Refrigerator and control method of refrigerator

Abstract

The invention discloses a refrigerator and a control method of the refrigerator, the refrigerator comprises an air duct assembly, the air duct assembly is arranged on a refrigerator body, and the air duct assembly is provided with an air inlet, a plurality of first air outlets, a plurality of second air outlets, a first airflow channel and a second airflow channel, the air inlet selectively communicates with at least one of the first airflow channel and the second airflow channel, and the air supply amount of the first airflow channel is smaller than that of the second airflow channel; the refrigeration chamber communicates with the first airflow channel through the multiple first air outlets, and / or the refrigeration chamber communicates with the second airflow channel through the multiple second air outlets. According to the refrigerator, the air supply amount of the first airflow channel is smaller than that of the second airflow channel. Therefore, the refrigerator can dynamically adjust the air supply amount of the refrigeration chamber according to the actual use working condition, air supply according to needs is achieved, the refrigerator can adapt to the use habits of users, the energy consumption of the refrigerator can be reduced, and the use experience of the users can be improved.

Description

Technical Field

[0001] The present invention relates to the technical field of refrigerators, and in particular to a refrigerator and a refrigerator control method. Background Art

[0002] In the related art, since the fan speed and the size of the air outlet of the air-cooled refrigerator are fixed, the air supply ratio inside the air-cooled refrigerator is fixed. However, in the actual use process of the user, the heat load placed in the air-cooled refrigerator, the ambient temperature during use, and the refrigeration demand of the air-cooled refrigerator are all variables. The air-cooled refrigerator with a fixed air supply ratio will increase the energy consumption of the air-cooled refrigerator and affect the user experience. Summary of the invention

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, one purpose of the present invention is to provide a refrigerator that can dynamically adjust the air supply volume of the refrigerated compartment according to actual use conditions, realize on-demand air supply, can adapt to the user's use habits, and can reduce the energy consumption of the refrigerator and improve the user's use experience.

[0004] Another object of the present invention is to provide a control method for the refrigerator.

[0005] According to a first aspect of the present invention, a refrigerator comprises: a box body, an opening is formed on the box body; a box door, the box door is rotatably arranged at the opening, and is used to open and close the opening, the box door and the box body jointly define a accommodating chamber, the accommodating chamber comprises a freezing chamber and a refrigerating chamber, and there is a partition between the freezing chamber and the refrigerating chamber; the refrigerator further comprises: an air duct assembly, the air duct assembly is arranged on the box body, the air duct assembly has an air inlet, a plurality of first air outlets, a plurality of second air outlets, a first air flow channel and a second air flow channel, the air inlet is selectively connected to at least one of the first air flow channel and the second air flow channel, and the air supply volume of the first air flow channel is less than the air supply volume of the second air flow channel; the refrigerating chamber is connected to the first air flow channel through the plurality of the first air outlets, and / or the refrigerating chamber is connected to the second air flow channel through the plurality of the second air outlets.

[0006] According to the refrigerator of the embodiment of the present invention, the air inlet of the air duct assembly is selectively connected to at least one of the first airflow channel and the second airflow channel, the refrigerated compartment is connected to the first airflow channel or the second airflow channel, and the air supply volume of the first airflow channel is less than the air supply volume of the second airflow channel. Therefore, compared with the traditional air-cooled refrigerator, the refrigerator can dynamically adjust the air supply volume of the refrigerated compartment according to the actual use conditions, realize on-demand air supply, can adapt to the user's use habits, and can reduce the energy consumption of the refrigerator and improve the user's use experience.

[0007] According to some embodiments of the present invention, the air duct assembly includes: an air duct plate, on which the first air outlet, the second air outlet, the first air flow channel and the second air flow channel are formed; an air duct switching member, the air duct switching member is arranged on one side of the first direction of the air duct plate, on which the air inlet is formed, and the air duct switching member has a first state, a second state and a third state; when the air duct switching member is in the first state, the air inlet is connected to the first air flow channel; when the air duct switching member is in the second state, the air inlet is connected to the second air flow channel; when the air duct switching member is in the third state, the air inlet is connected to both the first air flow channel and the second air flow channel. With such a configuration, the air supply volume of the refrigerated compartment can be dynamically adjusted to achieve on-demand air supply, reduce the energy consumption of the refrigerator, and improve the user experience.

[0008] According to some embodiments of the present invention, the first airflow channel and the second airflow channel both extend along the first direction, and the first airflow channel and the second airflow channel are spaced apart along the second direction, and the first direction is perpendicular to the second direction; the plurality of first air outlets include a first sub-air outlet and a second sub-air outlet, and the first sub-air outlet is located on the side of the first airflow channel away from the air duct switching member in the first direction, and the second sub-air outlet is located on the side of the first airflow channel away from the second airflow channel in the second direction. Thus, when the refrigerator is in a low-temperature environment and the heat load in the cold storage compartment is small, low-temperature airflow is blown to the cold storage compartment from different directions, so that the airflow can be evenly distributed in the cold storage compartment, so that the temperature at each position of the cold storage compartment is consistent, and uniform cooling is achieved.

[0009] According to some embodiments of the present invention, the plurality of second air outlets include a third sub-air outlet and a fourth sub-air outlet, the third sub-air outlet is located on a side of the second air flow channel away from the air duct switching member in the first direction, the fourth sub-air outlet is formed on a side wall of the second air flow channel in a third direction, and the third direction, the second direction and the first direction are orthogonal to each other. Thus, when the refrigerator is in a high temperature environment and the heat load in the refrigerated compartment is large, low-temperature airflow is blown to the refrigerated compartment from different directions, so that the airflow can be evenly distributed in the refrigerated compartment, achieving a rapid cooling effect.

[0010] According to some embodiments of the present invention, in the second direction, the width of the first airflow channel is smaller than the width of the second airflow channel. Thus, the air supply volume of the first airflow channel can be smaller than the air supply volume of the second airflow channel.

[0011] According to some embodiments of the present invention, the width of the first airflow channel in the second direction gradually increases in a direction away from the air duct switching member; and / or the width of the second airflow channel in the second direction gradually increases in a direction away from the air duct switching member. Thus, while ensuring that the airflow channel can supply air to the refrigerated compartment, airflow accumulation in the airflow channel is avoided, so that the airflow can be quickly blown into the refrigerated compartment.

[0012] According to some embodiments of the present invention, the air duct switching member includes: a shell, the shell is arranged on one side of the air duct plate in the third direction, the air inlet is formed on the side of the shell away from the first air flow channel in the first direction, and the third direction, the second direction and the first direction are orthogonal to each other; a first rotating plate, the first rotating plate is rotatably arranged in the shell, and the first rotating plate is located between the air inlet and the first air flow channel; a second rotating plate, the second rotating plate is rotatably arranged in the shell, and the second rotating plate is located between the air inlet and the second air flow channel; wherein the cross-sectional area of ​​the first rotating plate is smaller than the cross-sectional area of ​​the second rotating plate. Thus, the refrigerator can connect the air inlet with the first air flow channel and / or the second air flow channel according to the specific use conditions, so as to realize dynamic adjustment of the air supply volume of the refrigerated compartment.

[0013] According to some embodiments of the present invention, a partition is provided between the first rotating plate and the second rotating plate, and a side of the partition adjacent to the air inlet has a guide surface, and the guide surface extends obliquely in a direction toward the air inlet. Thus, the low-temperature airflow in the housing can accurately flow to the first airflow channel or the second airflow channel.

[0014] A refrigerator control method according to a second aspect of the present invention includes the following steps: Controlling the operation of a refrigerator, wherein the refrigerator is a refrigerator according to the first embodiment of the present invention; Obtaining the number of times the refrigerator door is opened N, the current refrigeration temperature Tf of the refrigeration compartment in the refrigerator, and the current ambient temperature T; The first operating condition of the air duct switching component is obtained according to the opening number N, the current refrigeration temperature Tf or the current ambient temperature T, wherein the first operating condition includes condition A, condition B and condition C. The condition A: judging whether the opening times N is less than a first preset value, whether the current refrigeration temperature Tf is greater than or equal to the startup temperature of the compressor, or whether the current ambient temperature T is less than or equal to a first ambient temperature value, When the judgment result of the condition A is yes, the air duct switching component switches to the first state; The condition B is to determine whether the number of opening times N is greater than the first preset value and less than or equal to the second preset value, whether the current refrigeration temperature Tf is greater than or equal to the first temperature value, or whether the current ambient temperature T is greater than the first ambient temperature value and less than or equal to the second ambient temperature value, the second preset value is greater than the first preset value, the first temperature value is greater than the power-on temperature, and the second ambient temperature value is greater than the first ambient temperature value. When the judgment result of the condition B is yes, the air duct switching member switches to the second state; The condition C: judging whether the opening times N is greater than the second preset value, whether the current refrigeration temperature Tf is greater than or equal to the second temperature value, or whether the current environment temperature T is greater than the second environment temperature value, and the second temperature value is greater than the first temperature value, When the judgment result of the condition C is yes, the air duct switching component is switched to the third state.

[0015] According to the control method of the refrigerator in the embodiment of the present invention, by adopting the above steps, the refrigerator can dynamically adjust the air supply volume of the refrigerated compartment according to the actual usage conditions to achieve on-demand air supply, and the refrigerator can adapt to the user's usage habits, reduce the energy consumption of the refrigerator, and improve the user's usage experience.

[0016] According to some embodiments of the present invention, when the judgment result of condition A is yes, the compressor operates at a low frequency and the fan of the refrigerator operates at a low speed; when the judgment result of condition B is yes, the compressor operates at a medium frequency and the fan operates at a medium speed; when the judgment result of condition C is yes, the compressor operates at a high frequency and the fan operates at a high speed. Thus, in different working conditions of the refrigerator, air can be supplied to the refrigerated compartment at different air supply volumes.

[0017] According to some embodiments of the present invention, after the air duct switching component operates in the first state, it is determined whether the current refrigeration temperature Tf is less than or equal to the shutdown temperature of the compressor, and the shutdown temperature is less than the startup temperature. When the determination result is yes, the connection between the first airflow channel and the air inlet is disconnected; After the air duct switching component operates in the second state, it is determined whether the current refrigeration temperature Tf is less than or equal to the shutdown temperature. If the determination result is yes, the connection between the second air flow channel and the air inlet is disconnected; After the air duct switching component operates in the third state, it is determined whether the current refrigeration temperature Tf is less than or equal to the shutdown temperature. When the determination result is yes, the connection between the first airflow channel and the second airflow channel and the air inlet is disconnected.

[0018] In this way, while meeting the refrigeration needs of the refrigerator under different working conditions, unnecessary energy consumption caused by excessive air supply to the refrigerated compartment is avoided.

[0019] According to some embodiments of the present invention, the refrigerator control method further includes the following steps: When the judgment results of the condition A, the condition B and the condition C are all negative, the gear position of the freezing compartment is obtained, and the second operating condition of the air duct switching component is obtained according to the gear position, and the second operating condition includes condition D and condition E. The condition D: judging whether the gear position is greater than or equal to the first gear position and less than the second gear position, and the second gear position is greater than the first gear position, When the judgment result of the condition D is yes, the refrigerator operates alternately in the first mode and the second mode, wherein the first mode is that the air duct switching member is switched to the second state, the compressor operates at a low frequency, and the fan operates at a low speed for a preset time; the second mode is that the connection between the second air flow channel and the air inlet is disconnected, the compressor is stopped, and the fan operates at a high speed for a preset time; The condition E: judging whether the gear position is greater than or equal to the third gear position and less than the first gear position, and the third gear position is less than the first gear position, When the judgment result of the condition E is yes, the air duct switching component is switched to the first state, the compressor runs at a low frequency, and the fan runs at a low speed.

[0020] Therefore, when the freezing temperature of the freezing compartment is switched, the refrigeration temperature of the refrigerating compartment is dynamically adjusted while the refrigeration demand of the freezing compartment is guaranteed, thereby reducing the energy consumption of the refrigerator.

[0021] According to some embodiments of the present invention, after the refrigerator is operated under the condition D or the condition E, a current freezing temperature Te of the freezing compartment is obtained, and it is determined whether the current freezing temperature Te is less than or equal to a shutdown temperature of the compressor; When the judgment result is yes, the compressor is controlled to stop, the air duct switching element is switched to the third state, and the fan is operated at a high speed; Determining whether the current refrigeration temperature Tf is less than or equal to the shutdown temperature; When the judgment result is yes, the fan is controlled to stop, and the connection between the first air flow channel and the second air flow channel and the air inlet is disconnected.

[0022] Therefore, when the refrigerator is in different working conditions, while meeting the refrigeration needs of the freezer compartment and the refrigerator compartment, there is no need to continue to supply air to the freezer compartment and the refrigerator compartment, thereby reducing unnecessary energy consumption.

[0023] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which: Figure 1 is a schematic diagram of an air duct assembly of a refrigerator according to an embodiment of the present invention; Figure 2 yes Figure 1 The enlarged view of the circled section A; Figure 3 is a schematic diagram of an air duct assembly of a refrigerator according to an embodiment of the present invention from another angle; Figure 4 yes Figure 3 The enlarged view of the circled part B; Figure 5 yes Figure 3 A front view of the air duct assembly of the refrigerator shown; Figure 6 is a schematic diagram of an air duct assembly of a refrigerator according to an embodiment of the present invention from another angle; Figure 7 is a partial enlarged view of an air duct assembly of a refrigerator according to an embodiment of the present invention; Figure 8 is a partial enlarged view of an air duct assembly of a refrigerator according to an embodiment of the present invention, wherein a housing is not shown; Fig. 9 is a schematic diagram of an air duct switching member of a refrigerator in a first state according to an embodiment of the present invention; Fig.10 yes Fig. 9 An enlarged partial view of the refrigerator shown; Fig.11 is a schematic diagram of an air duct switching member of a refrigerator in a second state according to an embodiment of the present invention; Fig.12 yes Fig.11 An enlarged partial view of the refrigerator shown; Fig.13 is a schematic diagram of an air duct switching member of a refrigerator in a third state according to an embodiment of the present invention; Fig.14 yes Fig.13 An enlarged partial view of the refrigerator shown; Fig.15 is a flowchart of a method for controlling a refrigerator according to an embodiment of the present invention.

[0025] Reference numerals: 100: air duct assembly; 10: air duct plate; 110: first air outlet; 111: first sub-air outlet; 112: second sub-air outlet; 120: second air outlet; 121: third sub-air outlet; 122: fourth sub-air outlet; 130: first air flow channel; 140: second air flow channel; 20: air duct switching member; 210: shell; 211: air inlet; 220: first rotating plate; 230: second rotating plate; 240: partition; 241: guide surface; 250: first fixing member; 251: first through hole; 260: second fixing member; 261: second through hole. DETAILED DESCRIPTION

[0026] Reference below Figure 1-Figure 14 A refrigerator according to an embodiment of the first aspect of the present invention is described.

[0027] A refrigerator according to an embodiment of the first aspect of the present invention includes: a cabinet body (not shown in the figure) and a cabinet door (not shown in the figure).

[0028] Specifically, an opening is formed on the box body, and a box door is rotatably arranged at the opening for opening and closing the opening. The box door and the box body together define a accommodating cavity, which includes a freezing compartment and a refrigerating compartment, and there is a partition between the freezing compartment and the refrigerating compartment.

[0029] The box body is the main structural part of the refrigerator, and the box body is formed with an opening suitable for storing and accessing food and other items. The box door is set at the opening of the box body, and the opening can be opened and closed. The accommodating cavity is used to place items (such as food, drinks, and facial masks, etc.). Different temperatures are set in the freezer and the refrigerator, respectively, and can be used to place items with different temperature requirements. Usually, the temperature of the freezer is lower than that of the refrigerator. The freezer and the refrigerator are arranged at intervals, wherein the freezer and the refrigerator can be arranged along the height direction of the box body, or the freezer and the refrigerator are arranged along the width direction of the box body, and the interval between the freezer and the refrigerator is small. But it is not limited to this. For example, when the interval between the freezer and the refrigerator can also be set larger, other chambers (such as variable temperature chambers) can be set in the freezer and the refrigerator.

[0030] The refrigerator further includes: an air duct assembly 100, which is arranged on the box body. The air duct assembly 100 has an air inlet 211, a plurality of first air outlets 110, a plurality of second air outlets 120, a first air flow channel 130, and a second air flow channel 140. In the description of the present invention, the meaning of "plurality" is two or more. The air inlet 211 can be selectively connected to at least one of the first air flow channel 130 and the second air flow channel 140. For example, the air inlet 211 can be connected only to the first air flow channel 130 (such as Fig. 9 and Fig.10 Alternatively, the air inlet 211 may also be connected only to the second air flow channel 140 (as shown); Fig.11 and Fig.12 Alternatively, the air inlet 211 is connected to the first air flow channel 130 and the second air flow channel 140 at the same time (as shown in Fig.13 and Fig.14 as shown).

[0031] The air supply volume of the first air flow channel 130 is smaller than the air supply volume of the second air flow channel 140. The refrigerating compartment is connected to the first air flow channel 130 through a plurality of first air outlets 110, and / or the refrigerating compartment is connected to the second air flow channel 140 through a plurality of second air outlets.

[0032] For example, in Figure 1-Figure 6 In the example, three first air outlets 110 and four second air outlets 120 are formed on the air duct assembly 100, and the first air flow channel 130 and the second air flow channel 140 are both arranged in the thickness direction of the air duct assembly 100 (for example, Figure 1 On one side (in the front-to-back direction), the three first air outlets 110 are all connected to the first air flow channel 130, and the four second air flow channels 140 are all connected to the second air flow channel 140.

[0033] Figure 1-Figure 6 Three first air outlets 110 and four second air outlets 120 are shown for illustrative purposes, but after reading the technical solution of the present application, ordinary technicians can obviously understand that the solution can be applied to technical solutions with other numbers of first air outlets 110 and second air outlets 120, which also falls within the scope of protection of the present invention.

[0034] Specifically, Fig. 9 and Fig.10 As shown, when the refrigerator is in a low temperature environment and the heat load in the cold storage compartment is small, the cold storage compartment requires less cooling capacity, so the air inlet 211 can be connected only to the first air flow channel 130, and a small amount of low-temperature airflow can flow to the first air flow channel 130 through the air inlet 211, and the low-temperature airflow in the first air flow channel 130 flows into the cold storage compartment through the three first air outlets 110. The three first air outlets 110 can blow to the cold storage compartment from different directions, so that the low-temperature airflow can be evenly distributed in the cold storage compartment, ensuring that the temperature at each position of the cold storage compartment is consistent, and achieving uniform cooling.

[0035] like Fig.11 and Fig.12As shown, when the refrigerator is in a medium temperature environment and the cold storage room is statically stored, that is, there is no external heat load in the cold storage room, the refrigeration capacity required by the cold storage room is slightly greater than the refrigeration capacity in the low temperature environment. Since the air supply volume of the second air flow channel 140 is greater than the air supply volume of the first air flow channel 130, the air inlet 211 can be connected only to the second air flow channel 140, and more low-temperature air can flow to the second air flow channel 140 through the air inlet 211. The low-temperature air in the second air flow channel 140 flows into the cold storage room through the four second air outlets 120. The four second air outlets 120 can blow to the cold storage room from different directions, so that the low-temperature air can be evenly distributed in the cold storage room, ensuring that the temperature at each position of the cold storage room is consistent, and achieving uniform refrigeration.

[0036] like Fig.13 and Fig.14 As shown, when the refrigerator is in a high temperature environment and a large amount of heat load is placed in the cold storage room and needs to be cooled quickly, the refrigeration capacity required by the cold storage room is greater than the refrigeration capacity of the medium temperature environment, and the air inlet 211 can be connected to the first air flow channel 130 and the second air flow channel 140 at the same time. A large amount of low-temperature airflow can flow to the first air flow channel 130 and the second air flow channel 140 respectively through the air inlet 211, and the airflow in the first air flow channel 130 flows into the cold storage room through the three first air outlets 110, and the airflow in the second air flow channel 140 flows into the cold storage room through the four second air outlets 120. In this way, a large amount of low-temperature airflow is delivered to the cold storage room, which is conducive to the rapid cooling of the cold storage room.

[0037] Therefore, the refrigerator can dynamically adjust the air supply volume of the refrigerated compartment according to the actual usage conditions, realize on-demand air supply, adapt to the user's usage habits, reduce the energy consumption of the refrigerator, and improve the user experience.

[0038] According to the refrigerator of the embodiment of the present invention, the air inlet 211 of the air duct assembly 100 is selectively connected to at least one of the first airflow channel 130 and the second airflow channel 140, so that the refrigerating compartment is connected to the first airflow channel 130 or the second airflow channel 140, and the air supply volume of the first airflow channel 130 is less than the air supply volume of the second airflow channel 140. Therefore, compared with the traditional air-cooled refrigerator, the refrigerator can dynamically adjust the air supply volume of the refrigerating compartment according to the actual use conditions, realize on-demand air supply, can adapt to the user's use habits, and can reduce the energy consumption of the refrigerator and improve the user's use experience.

[0039] According to some embodiments of the present invention, the air duct assembly 100 includes: an air duct plate 10 and an air duct switching member 20, wherein the air duct plate 10 is formed with a first air outlet 110, a second air outlet 120, a first air flow channel 130, and a second air flow channel 140. The air duct switching member 20 is disposed in a first direction (e.g., Figure 1On one side of the air duct switching member 20 (in the up and down direction), an air inlet 211 is formed on the air duct switching member 20. Figure 1-Figure 7 The first airflow channel 130, the second airflow channel 140 and the air duct switching member 20 are all arranged on the same side of the thickness direction of the air duct plate 10, and the first airflow channel 130 and the second airflow channel 140 are both located above the air duct switching member 20, and the air inlet 211 is formed on a side of the air duct switching member 20 away from the airflow channel. By providing the air duct switching member 20, the air inlet 211 can be communicated with at least one of the first airflow channel 130 and the second airflow channel 140.

[0040] The air duct switching member 20 has a first state, a second state and a third state. When the air duct switching member 20 is in the first state, the air inlet 211 is connected to the first air flow channel 130 (eg, Fig. 9 and Fig.10 When the air duct switching member 20 is in the second state, the air inlet 211 is connected to the second air flow channel 140 (as shown); Fig.11 and Fig.12 When the air duct switching member 20 is in the third state, the air inlet 211 is connected to both the first air flow channel 130 and the second air flow channel 140 (as shown); Fig.13 and Fig.14 With this setting, the air supply volume of the refrigerated compartment can be dynamically adjusted to achieve on-demand air supply, reduce the energy consumption of the refrigerator, and improve the user experience.

[0041] According to some specific embodiments of the present invention, Figure 3-Figure 6 , the first airflow channel 130 and the second airflow channel 140 both extend along the first direction, and the first airflow channel 130 and the second airflow channel 140 extend along the second direction (for example, Figure 1 The first direction is perpendicular to the second direction.

[0042] It should be noted that the first direction may be the height direction of the air duct plate 10 , and the second direction may be the width direction of the air duct plate 10 .

[0043] The multiple first air outlets 110 include a first sub-air outlet 111 and a second sub-air outlet 112. In the first direction, the first sub-air outlet 111 is located on a side of the first air flow channel 130 away from the air duct switching component 20, and in the second direction, the second sub-air outlet 112 is located on a side of the first air flow channel 130 away from the second air flow channel 140.

[0044] like Figure 6 , Fig. 9 and Fig.10As shown, the three first air outlets 110 include a first sub-air outlet 111 and two second sub-air outlets 112. The first sub-air outlet 111 is formed on the upper surface of the air duct plate 10, and the first sub-air outlet 111 is connected to the upper end of the first air flow channel 130. The two second sub-air outlets 112 are formed in the width direction of the air duct plate 10 (for example, Figure 1 The two second sub-air outlets 112 are spaced apart along the height direction of the air duct plate 10.

[0045] When the refrigerator is in a low-temperature environment and the heat load in the cold storage compartment is small, the first air flow channel 130 is connected to the air inlet 211. At this time, a small amount of low-temperature airflow can flow to the first air flow channel 130 through the air inlet 211. During the flow of the airflow along the first air flow channel 130, a part of the low-temperature airflow passes through the two second sub-air outlets 112 and blows toward the cold storage compartment from the side of the air duct plate 10, and another part of the low-temperature airflow passes through the first sub-air outlet 111 and blows toward the cold storage compartment from the upper part of the air duct plate 10. In this way, the low-temperature airflow is blown toward the cold storage compartment from different directions, so that the airflow can be evenly distributed in the cold storage compartment, so that the temperature at each position of the cold storage compartment is consistent, and uniform cooling is achieved.

[0046] It should be noted that the opening areas of the two second sub-air outlets 112 may be the same or different. Since a partition may be provided in the refrigerated compartment to divide the refrigerated compartment into a plurality of sub-cavities, each second sub-air outlet 112 may be connected to at least one sub-cavity, so that the temperatures of the plurality of sub-cavities can be adjusted synchronously, further making the temperatures of various locations in the refrigerated compartment consistent.

[0047] Further, the plurality of second air outlets 120 include a third sub-air outlet 121 and a fourth sub-air outlet 122. The third sub-air outlet 121 is located on a side of the second air flow channel 140 away from the air duct switching member 20 in the first direction, and the fourth sub-air outlet 122 is formed on a side wall of the second air flow channel 140 in the third direction. The third direction, the second direction, and the first direction are orthogonal to each other. For example, the third direction may be the thickness direction of the air duct plate 10 (for example, Figure 1 in the front-to-back direction).

[0048] like Figure 6 , Fig.11 and Fig.12 As shown, the four second air outlets 120 include a third sub-air outlet 121 and three fourth sub-air outlets 122, the third sub-air outlet 121 is formed on the upper surface of the air duct plate 10, and the third sub-air outlet 121 is connected to the upper end of the second air flow channel 140. The three fourth sub-air outlets 122 penetrate the bottom wall of the second air flow channel 140 along the thickness direction of the air duct plate 10, and the three fourth sub-air outlets 122 are spaced apart along the height direction of the air duct plate 10.

[0049] When the refrigerator is in a medium-temperature environment and there is no external heat load in the refrigerating compartment, at this time, the low-temperature air flow can flow through the air inlet 211 to the second air flow channel 140. During the flow of the air flow along the second air flow channel 140, a part of the low-temperature air flow blows from the front of the air duct plate 10 to the refrigerating compartment through the three fourth sub-air outlets 122, and another part of the low-temperature air flow blows from the upper part of the air duct plate 10 to the refrigerating compartment through the third sub-air outlet 121. Thus, the low-temperature air flow is blown to the refrigerating compartment from different directions, so that the air flow can be evenly distributed in the refrigerating compartment, so that the temperatures at various positions in the refrigerating compartment are the same, and uniform refrigeration is achieved.

[0050] In addition, when the refrigerator is in a high-temperature environment and there is a large amount of heat load placed in the refrigerating compartment and rapid cooling is required, a large amount of low-temperature air flow blown out from the three fourth sub-air outlets 122 can directly blow to the items in the refrigerating compartment, and rapid heat exchange can be achieved, thereby achieving rapid cooling.

[0051] It should be noted that the opening areas of the three fourth sub-air outlets 122 can be the same or different. Since partitions can be provided in the refrigerating compartment to divide the refrigerating compartment into multiple sub-chambers, each fourth sub-air outlet 122 can communicate with at least one sub-chamber, so that the temperatures of the multiple sub-chambers can be adjusted synchronously, and further the temperatures at various positions in the refrigerating compartment are the same.

[0052] According to some embodiments of the present invention, with reference to Figure 5 , in the second direction, the width of the first air flow channel 130 is smaller than the width of the second air flow channel 140. In this way, in the projection plane in the thickness direction of the air duct plate 10, the area of the first air flow channel 130 is smaller than the area of the second air flow channel 140, so that the air supply volume of the first air flow channel 130 can be smaller than the air supply volume of the second air flow channel 140.

[0053] According to some embodiments of the present invention, along the direction away from the air duct switching member 20, the width of the first air flow channel 130 gradually increases in the second direction. As Figure 5 shown, in the projection plane in the thickness direction of the air duct plate 10, the shape of the first air flow channel 130 is generally strip-shaped, the width of the end of the first air flow channel 130 adjacent to the air inlet 211 is smaller, and the width of the end of the first air flow channel 130 away from the air inlet 211 is larger. The first air outlet 110 is arranged at the position where the width of the first air flow channel 130 is larger. Thus, while ensuring that the first air flow channel 130 can supply air with a smaller air supply volume, it is avoided that the air flow accumulates in the first air flow channel 130, so that the air flow can quickly blow into the refrigerating compartment.

[0054] And / or, along the direction away from the air duct switching member 20, the width of the second air flow channel 140 gradually increases in the second direction. As Figure 5As shown, in the projection plane of the thickness direction of the air duct plate 10, the shape of the second airflow channel 140 is roughly rectangular, the width of the end of the second airflow channel 140 adjacent to the air inlet 211 is smaller, and the width of the end of the second airflow channel 140 away from the air inlet 211 is larger. The second air outlet 120 is arranged at a position where the width of the second airflow channel 140 is larger. Thus, while ensuring that the second airflow channel 140 can supply air with a larger air supply volume, the airflow is prevented from accumulating in the second airflow channel 140, so that the airflow can be quickly blown into the refrigerated room.

[0055] According to some embodiments of the present invention, Figure 7 and Figure 8 As shown, the air duct switching member 20 includes: a housing 210, a first rotating plate 220, and a second rotating plate 230. The housing 210 is disposed on one side of the air duct plate 10 in the third direction, and an air inlet 211 is formed on the side of the housing 210 away from the first air flow channel 130 in the first direction. The first rotating plate 220 is rotatably disposed in the housing 210, and the first rotating plate 220 is located between the air inlet 211 and the first air flow channel 130. The second rotating plate 230 is rotatably disposed in the housing 210, and the second rotating plate 230 is located between the air inlet 211 and the second air flow channel 140.

[0056] For example, in Figure 7 and Figure 8 In the example, the shell 210 is disposed at the bottom of the air duct plate 10 and defines an installation cavity together with the air duct plate 10, the first rotating plate 220 and the second rotating plate 230 are both disposed in the installation cavity, and the first rotating plate 220 and the second rotating plate 230 are both rotatably connected to the air duct plate 10, and the first rotating plate 220 and the second rotating plate 230 are spaced apart along the width direction of the air duct plate 10.

[0057] Specifically, when the first rotating plate 220 rotates to be perpendicular to the air duct plate 10, the ends of the first rotating plate 220 stop against the inner walls of the air duct plate 10 and the housing 210 respectively, so as to separate the first airflow channel 130 from the air inlet 211, and at this time, no low-temperature airflow flows in the first airflow channel 130. When the first rotating plate 220 rotates to be parallel to the air duct plate 10, the ends of the first rotating plate 220 separate from the inner wall of the housing 210, so that the first airflow channel 130 and the air inlet 211 are connected, and at this time, the low-temperature airflow can flow to the first airflow channel 130 through the air inlet 211.

[0058] Similarly, when the second rotating plate 230 rotates to be perpendicular to the air duct plate 10, the ends of the second rotating plate 230 stop against the inner walls of the air duct plate 10 and the housing 210 respectively, so as to separate the second airflow channel 140 from the air inlet 211, and at this time, no low-temperature airflow flows in the second airflow channel 140. When the second rotating plate 230 rotates to be parallel to the air duct plate 10, the ends of the second rotating plate 230 separate from the inner wall of the housing 210, so that the second airflow channel 140 is connected to the air inlet 211, and at this time, the low-temperature airflow can flow to the second airflow channel 140 through the air inlet 211.

[0059] The cross-sectional area of ​​the first rotating plate 220 is smaller than the cross-sectional area of ​​the second rotating plate 230. Figure 8 As shown, the width of the first rotating plate 220 and the width of the second rotating plate 230 in the thickness direction of the air duct plate 10 are the same, and the length of the first rotating plate 220 in the width direction of the air duct plate 10 is smaller than the length of the second rotating plate 230, so that the cross-sectional area of ​​the first rotating plate 220 is smaller than the cross-sectional area of ​​the second rotating plate 230, thereby making the air supply volume of the first airflow channel 130 smaller than the air supply volume of the second airflow channel 130.

[0060] Optionally, the air duct assembly 100 further includes a first fixing member 250 and a second fixing member 260, which extend along the thickness direction of the air duct plate 10 and abut against the housing 210, and a first through hole 251 is formed on the first fixing member 250, and the shape of the first through hole 251 matches the shape of the first rotating plate 220, and the first rotating plate 220 is rotatably disposed at the first through hole 251 to open and close the first through hole 251. When the first rotating plate 220 rotates to be perpendicular to the air duct plate 10, the first through hole 251 is closed, and when the first rotating plate 220 rotates to be parallel to the air duct plate 10, the first through hole 251 is opened, and the low-temperature airflow flows to the first airflow channel 130 through the air inlet 211 and the first through hole 251.

[0061] The second fixing member 260 is formed with a second through hole 261, the shape of which matches the shape of the second rotating plate 230, and the second rotating plate 230 is rotatably disposed at the second through hole 261 to open and close the second through hole 261. When the second rotating plate 230 rotates to be perpendicular to the air duct plate 10, the second through hole 261 is closed, and when the second rotating plate 230 rotates to be parallel to the air duct plate 10, the second through hole 261 is opened, and the low-temperature airflow flows to the second airflow channel 140 through the air inlet 211 and the second through hole 261.

[0062] Furthermore, if Figure 8As shown, a partition 240 is provided between the first rotating plate 220 and the second rotating plate 230, and a guide surface 241 is provided on one side of the partition 240 adjacent to the air inlet 211, and the guide surface 241 extends obliquely in the direction toward the air inlet 211. In order to ensure that the second air flow channel 140 can have a large air supply volume, the area where the air inlet 211 and the second air flow channel 140 are opposite is larger than the area where the air inlet 211 and the first air flow channel 130 are opposite. The guide surface 241 can be provided on one side of the partition 240 adjacent to the first air flow channel 130, and extends obliquely downward in the direction toward the air inlet 211, playing a guiding role, so that the low-temperature air flow can flow smoothly to the first air flow channel 130. At the same time, the partition 240 can separate the first air flow channel 130 from the second air flow channel 140, so that the low-temperature air flow in the housing 210 can accurately flow to the first air flow channel 130 or the second air flow channel 140.

[0063] like Fig.15 As shown, the control method of the refrigerator according to the second aspect of the present invention comprises the following steps: Controlling the operation of a refrigerator, wherein the refrigerator is a refrigerator according to the first embodiment of the present invention; Obtain the number of times the refrigerator door is opened N, the current refrigeration temperature Tf of the refrigerator's refrigeration compartment, and the current ambient temperature T. A temperature sensor may be provided inside the refrigeration compartment to detect the temperature of the refrigeration compartment in real time. A temperature sensor may also be provided outside the refrigerator to detect the ambient temperature of the refrigerator in real time.

[0064] The first operating condition of the air duct switching element 20 is obtained according to the number of openings N, the current refrigeration temperature Tf or the current ambient temperature T. The first operating condition includes condition A, condition B and condition C. Condition A: Determine whether the number of opening times N is less than a first preset value, whether the current refrigeration temperature Tf is greater than or equal to the compressor startup temperature, or whether the current ambient temperature T is less than or equal to a first ambient temperature value. When the judgment result of condition A is yes, the air duct switching member 20 switches to the first state.

[0065] For example, in Fig.15 In the example, it is determined whether the number of opening times N is less than 4, whether the current refrigeration temperature Tf is greater than or equal to the startup temperature of the compressor, or whether the current ambient temperature T is less than or equal to 10°C. When the judgment result of at least one of the above three judgment conditions is yes, the judgment result of condition A is yes, and it can be determined that the refrigerator is in a low temperature environment and a low heat load condition, indicating that the required air supply volume for the refrigeration compartment is small, and the air duct switching member 20 is switched to the first state, so that a small amount of low-temperature airflow can flow to the first airflow channel 130 through the air inlet 211, and blow to the refrigeration compartment through the first air outlet 110, so as to realize a small air supply volume to the refrigeration compartment.

[0066] Condition B: Determine whether the number of opening times N is greater than the first preset value and less than or equal to the second preset value, whether the current refrigeration temperature Tf is greater than or equal to the first temperature value, or whether the current ambient temperature T is greater than the first ambient temperature value and less than or equal to the second ambient temperature value, the second preset value is greater than the first preset value, the first temperature value is greater than the power-on temperature, and the second ambient temperature value is greater than the first ambient temperature value. When the judgment result of condition B is yes, the air duct switching component 20 switches to the second state.

[0067] For example, in Fig.15 In the example, it is determined whether the number of opening times N is greater than 4 and less than or equal to 9, whether the current refrigeration temperature Tf is greater than or equal to the first temperature value (for example, the first temperature value may be the power-on temperature + 2), or whether the current ambient temperature T is greater than 10°C and less than or equal to 32°C. When the judgment result of at least one of the above three judgment conditions is yes, the judgment result of condition B is yes, and it can be determined that the refrigerator is in a medium temperature environment and has no external heat load, indicating that the required air supply volume of the refrigeration compartment is medium, and the air duct switching member 20 is switched to the second state, so that the low-temperature airflow can flow to the second airflow channel 140 through the air inlet 211, and blow to the refrigeration compartment through the second air outlet 120, so as to realize the medium air supply to the refrigeration compartment.

[0068] Condition C: Determine whether the number of opening times N is greater than a second preset value, whether the current refrigeration temperature Tf is greater than or equal to a second temperature value, or whether the current ambient temperature T is greater than a second ambient temperature value, and the second temperature value is greater than the first temperature value, When the judgment result of condition C is yes, the air duct switching member 20 switches to the third state.

[0069] For example, in Fig.15 In the example, it is determined whether the number of opening times N is greater than 9, whether the current refrigeration temperature Tf is greater than or equal to the second temperature value (for example, the second temperature value may be the power-on temperature + 4), or whether the current ambient temperature T is greater than 32°C. When the judgment result of at least one of the above three judgment conditions is yes, the judgment result of condition C is yes, and it can be determined that the refrigerator is in a high temperature environment and a large amount of heat load is placed in the working condition, indicating that the refrigeration compartment requires a large amount of air supply, and the air duct switching member 20 is switched to the third state, so that a large amount of low-temperature airflow can flow to the first airflow channel 130 and the second airflow channel 140 through the air inlet 211, respectively, and blow to the refrigeration compartment through the first air outlet 110 and the second air outlet 120, so as to realize a large amount of air supply to the refrigeration compartment and quickly cool down.

[0070] According to the control method of the refrigerator in the embodiment of the present invention, by adopting the above steps, the refrigerator can dynamically adjust the air supply volume of the refrigerated compartment according to the actual usage conditions to achieve on-demand air supply, and the refrigerator can adapt to the user's usage habits, reduce the energy consumption of the refrigerator, and improve the user's usage experience.

[0071] According to some embodiments of the present invention, when the judgment result of condition A is yes, the compressor operates at a low frequency and the fan of the refrigerator operates at a low speed. In this way, when the refrigerator is in a low temperature environment and a low heat load, the air duct switching member 20 operates in the first state, and the compressor operates at a low frequency and the fan operates at a low speed, thereby achieving a small air volume supply to the refrigerated compartment.

[0072] When the judgment result of condition B is yes, the compressor operates at medium frequency and the fan operates at medium speed. In this way, when the refrigerator is in a medium temperature environment and there is no external heat load, the air duct switching element 20 operates in the second state, and the compressor operates at medium frequency and the fan operates at medium speed, so as to achieve medium air volume supply to the refrigerated compartment.

[0073] It should be noted that the operating frequency of the compressor under condition B is greater than the operating frequency of the compressor under condition A, and the rotation speed of the fan under condition B is greater than the rotation speed of the fan under condition A.

[0074] When the judgment result of condition C is yes, the compressor operates at high frequency and the fan operates at high speed. In this way, when the refrigerator is in a high temperature environment and a large amount of heat load is placed, the air duct switching element 20 operates in the third state, and the compressor operates at high frequency and the fan operates at high speed, so as to achieve a large amount of air supply to the refrigerated compartment.

[0075] It should be noted that the operating frequency of the compressor under condition C is greater than the operating frequency of the compressor under condition B, and the rotation speed of the fan under condition C is greater than the rotation speed of the fan under condition B.

[0076] Furthermore, after the air duct switching member 20 operates in the first state, it is determined whether the current refrigeration temperature Tf is less than or equal to the shutdown temperature of the compressor, and the shutdown temperature is less than the startup temperature. If the determination result is yes, the connection between the first airflow channel 130 and the air inlet 211 is disconnected. In other words, after the refrigerator operates under condition A for a certain period of time, it is determined whether the current refrigeration temperature Tf of the refrigeration compartment reaches the shutdown temperature of the compressor to determine whether the current refrigeration temperature Tf of the refrigeration compartment meets the user's use requirements. When the user's use requirements are met, there is no need to supply air to the refrigeration compartment, so as to avoid unnecessary energy consumption caused by excessive air supply.

[0077] After the air duct switching member 20 operates in the second state, it is determined whether the current refrigeration temperature Tf is less than or equal to the shutdown temperature. If the determination result is yes, the connection between the second airflow channel 140 and the air inlet 211 is disconnected. That is, after the refrigerator operates for a certain period of time under condition B, it is determined whether the current refrigeration temperature Tf of the refrigeration compartment reaches the shutdown temperature of the compressor to determine whether the current refrigeration temperature Tf of the refrigeration compartment meets the user's usage requirements. When the user's usage requirements are met, there is no need to supply air to the refrigeration compartment, so as to avoid unnecessary energy consumption caused by excessive air supply.

[0078] After the air duct switching member 20 operates in the third state, it is determined whether the current refrigeration temperature Tf is less than or equal to the shutdown temperature. If the determination result is yes, the connection between the first airflow channel 130 and the second airflow channel 140 and the air inlet 211 is disconnected. That is, after the refrigerator operates under condition C for a certain period of time, it is determined whether the current refrigeration temperature Tf of the refrigeration compartment reaches the shutdown temperature of the compressor to determine whether the current refrigeration temperature Tf of the refrigeration compartment meets the user's use requirements. When the user's use requirements are met, there is no need to supply air to the refrigeration compartment, so as to avoid unnecessary energy consumption caused by excessive air supply.

[0079] According to some embodiments of the present invention, the refrigerator control method further includes the following steps: When the judgment results of conditions A, B and C are all negative, the gear position of the freezer compartment is obtained, and the second operating condition of the air duct switching component 20 is obtained according to the gear position. The second operating condition includes conditions D and E. At this time, it can be determined that the user is using the temperature conversion function.

[0080] Condition D: Determine whether the gear position is greater than or equal to the first gear position and less than the second gear position, and the second gear position is greater than the first gear position. When the judgment result of condition D is yes, the refrigerator operates alternately in the first mode and the second mode. The first mode is that the air duct switching component 20 switches to the second state, the compressor runs at a low frequency, and the fan runs at a low speed for a preset period of time; the second mode is to disconnect the second air flow channel 140 from the air inlet 211, the compressor stops, and the fan runs at a high speed for a preset period of time.

[0081] For example, in Fig.15 In the example, when the gear position of the freezer compartment is greater than or equal to gear 0 and less than gear 3, the evaporator of the refrigerator is placed in the space of the freezer compartment, and the freezing and cooling speed is faster than the refrigeration. At this time, the second airflow channel 140 can be controlled to open, so that the fan runs at a low speed and the compressor runs at a low frequency for 5 minutes to adjust the refrigeration temperature of the refrigeration compartment; then the second airflow channel 140 is controlled to close, the compressor stops and the fan runs at a high speed for 5 minutes; the refrigerator can alternately operate in the first mode and the second mode until the user's refrigeration needs are met.

[0082] When the compressor is stopped, the freezing temperature increases, and when the second air flow channel 140 of the refrigerating compartment is opened, the fan runs at a high speed, the air supply volume of the refrigerating compartment increases, and the refrigerating temperature can be further reduced. In this way, while meeting the refrigeration demand of the freezing compartment, the temperature difference between the freezing compartment and the refrigerating compartment during the refrigeration process can be reduced.

[0083] Condition E: Determine whether the gear position is greater than or equal to the third gear and less than the first gear, and the third gear is less than the first gear. When the judgment result of condition E is yes, the air duct switching component 20 is switched to the first state, the compressor runs at a low frequency, and the fan runs at a low speed.

[0084] For example, in Fig.15 In the example, when the gear position of the freezer compartment is greater than or equal to -5 gear and less than 0 gear, at this time, the freezer compartment has a negative temperature demand. Due to the rapid freezing and cooling, by opening the first air flow channel 130, the compressor runs at a low frequency and the fan runs at a low speed, the air supply volume of the refrigerating compartment can be reduced, thereby increasing the air supply volume of the freezer compartment, thereby achieving rapid cooling of the freezer compartment.

[0085] Further, the refrigerator is operated under condition D or condition E, a current freezing temperature Te of the freezing compartment is obtained, and it is determined whether the current freezing temperature Te is less than or equal to a shutdown temperature of the compressor; When the judgment result is yes, the compressor is controlled to stop, the air duct switching element 20 is switched to the third state, and the fan runs at a high speed.

[0086] At this time, the current freezing temperature Te of the freezing compartment meets the refrigeration demand, and there is no need to supply air to the freezing compartment. The compressor is controlled to stop to reduce unnecessary energy consumption. The refrigeration temperature of the refrigerating compartment has not reached the shutdown temperature of the compressor. The first air flow channel 130 and the second air flow channel 140 are both opened, and the fan runs at a high speed to supply a large amount of air to the refrigerating compartment to ensure that the refrigeration temperature can meet the user's refrigeration demand.

[0087] If the current freezing temperature Te of the freezing compartment does not meet the refrigeration demand, the refrigerator continues to operate under conditions D and E until the current freezing temperature Te of the freezing compartment reaches the shutdown temperature of the compressor.

[0088] Determine whether the current refrigeration temperature Tf is less than or equal to the shutdown temperature; When the judgment result is yes, the fan is controlled to stop, and the first airflow channel 130 and the second airflow channel 140 are disconnected from the air inlet 211. At this time, the refrigeration temperature of the refrigerated compartment reaches the shutdown temperature of the compressor, the first airflow channel 130 and the second airflow channel 140 are disconnected, and the fan is stopped, so there is no need to supply a large amount of air to the refrigerated compartment, thereby reducing unnecessary energy consumption.

[0089] If the refrigeration temperature Tf of the refrigeration compartment does not meet the refrigeration demand, the air duct switching element 20 is controlled to continue to be in the third state and the fan continues to run at a high speed until the refrigeration temperature Tf of the refrigeration compartment reaches the shutdown temperature of the compressor.

[0090] Other structures and operations of the refrigerator according to the embodiment of the present invention are known to those skilled in the art and will not be described in detail here.

[0091] In the description of the present invention, it should be understood that the terms "center", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0092] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0093] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example.

[0094] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A refrigerator, comprising: A box body, wherein an opening is formed on the box body; a cabinet door, the cabinet door being rotatably disposed at the opening and used for opening and closing the opening, the cabinet door and the cabinet body jointly defining a receiving chamber, the receiving chamber comprising a freezing chamber and a refrigerating chamber, and a partition being provided between the freezing chamber and the refrigerating chamber; Characterized in that the refrigerator further comprises: An air duct assembly, the air duct assembly is arranged on the box body, the air duct assembly has an air inlet, a plurality of first air outlets, a plurality of second air outlets, a first air flow channel and a second air flow channel, the air inlet can be selectively connected to at least one of the first air flow channel and the second air flow channel, and the air supply volume of the first air flow channel is less than the air supply volume of the second air flow channel; The refrigerating compartment is connected to the first air flow channel through a plurality of the first air outlets, and / or, The refrigerating compartment is in communication with the second air flow channel through the plurality of the second air outlets.

2. The refrigerator according to claim 1, characterized in that: The air duct assembly comprises: An air duct plate, wherein the first air outlet, the second air outlet, the first air flow channel and the second air flow channel are formed on the air duct plate; An air duct switching member, the air duct switching member is arranged on one side of the air duct plate in the first direction, the air inlet is formed on the air duct switching member, and the air duct switching member has a first state, a second state and a third state; When the air duct switching member is in the first state, the air inlet is connected to the first air flow channel; When the air duct switching member is in the second state, the air inlet is connected to the second air flow channel; When the air duct switching member is in the third state, the air inlet is connected to both the first air flow channel and the second air flow channel.

3. The refrigerator according to claim 2, characterized in that: The first airflow channel and the second airflow channel both extend along the first direction, and the first airflow channel and the second airflow channel are spaced apart along a second direction, and the first direction is perpendicular to the second direction; The multiple first air outlets include a first sub-air outlet and a second sub-air outlet. In the first direction, the first sub-air outlet is located on a side of the first air flow channel away from the air duct switching component, and in the second direction, the second sub-air outlet is located on a side of the first air flow channel away from the second air flow channel.

4. The refrigerator according to claim 3, characterized in that: The multiple second air outlets include a third sub-air outlet and a fourth sub-air outlet. In the first direction, the third sub-air outlet is located on the side of the second air flow channel away from the air duct switching component, and the fourth sub-air outlet is formed on the side wall of the second air flow channel in the third direction. The third direction, the second direction and the first direction are orthogonal to each other.

5. The refrigerator according to claim 3, characterized in that: In the second direction, a width of the first air flow channel is smaller than a width of the second air flow channel.

6. The refrigerator according to claim 3, characterized in that: The width of the first airflow channel in the second direction gradually increases in a direction away from the air duct switching member; and / or, Along the direction away from the air duct switching component, the width of the second air flow channel in the second direction gradually increases.

7. The refrigerator according to any one of claims 2 to 6, characterized in that: The air duct switching member comprises: a housing, the housing being arranged on one side of the air duct plate in a third direction, the air inlet being formed on a side of the housing away from the first air flow channel in the first direction, the third direction, the second direction and the first direction being orthogonal to each other; a first rotating plate, the first rotating plate being rotatably disposed in the housing and being located between the air inlet and the first air flow channel; a second rotating plate, the second rotating plate being rotatably disposed in the housing and being located between the air inlet and the second air flow channel; Wherein, a cross-sectional area of ​​the first rotating plate is smaller than a cross-sectional area of ​​the second rotating plate.

8. The refrigerator according to claim 7, characterized in that: A partition is provided between the first rotating plate and the second rotating plate. A side of the partition adjacent to the air inlet has a guide surface, and the guide surface extends obliquely in a direction toward the air inlet.

9. A refrigerator control method, characterized in that: The following steps are involved: Controlling the operation of a refrigerator, wherein the refrigerator is a refrigerator according to any one of claims 1 to 8; Obtain the number of times the refrigerator door is opened N, the current refrigeration temperature Tf of the refrigeration compartment in the refrigerator, and the current ambient temperature T; The first operating condition of the air duct switching component is obtained according to the opening number N, the current refrigeration temperature Tf or the current ambient temperature T, wherein the first operating condition includes condition A, condition B and condition C. The condition A: judging whether the opening times N is less than a first preset value, whether the current refrigeration temperature Tf is greater than or equal to the startup temperature of the compressor, or whether the current ambient temperature T is less than or equal to a first ambient temperature value, When the judgment result of the condition A is yes, the air duct switching component switches to the first state; The condition B is to determine whether the number of opening times N is greater than the first preset value and less than or equal to the second preset value, whether the current refrigeration temperature Tf is greater than or equal to the first temperature value, or whether the current ambient temperature T is greater than the first ambient temperature value and less than or equal to the second ambient temperature value, the second preset value is greater than the first preset value, the first temperature value is greater than the power-on temperature, and the second ambient temperature value is greater than the first ambient temperature value. When the judgment result of the condition B is yes, the air duct switching member switches to the second state; The condition C: judging whether the opening times N is greater than the second preset value, whether the current refrigeration temperature Tf is greater than or equal to the second temperature value, or whether the current environment temperature T is greater than the second environment temperature value, and the second temperature value is greater than the first temperature value, When the judgment result of the condition C is yes, the air duct switching component is switched to the third state.

10. The refrigerator control method according to claim 9, characterized in that: When the judgment result of the condition A is yes, the compressor operates at a low frequency and the fan of the refrigerator operates at a low speed; When the judgment result of the condition B is yes, the compressor operates at a medium frequency and the fan operates at a medium speed; When the judgment result of the condition C is yes, the compressor runs at a high frequency and the fan runs at a high speed.

11. The refrigerator control method according to claim 10, characterized in that: After the air duct switching component operates in the first state, it is determined whether the current refrigeration temperature Tf is less than or equal to the shutdown temperature of the compressor, and the shutdown temperature is less than the startup temperature. If the determination result is yes, the connection between the first airflow channel and the air inlet is disconnected; After the air duct switching component operates in the second state, it is determined whether the current refrigeration temperature Tf is less than or equal to the shutdown temperature. If the determination result is yes, the connection between the second air flow channel and the air inlet is disconnected; After the air duct switching component operates in the third state, it is determined whether the current refrigeration temperature Tf is less than or equal to the shutdown temperature. When the determination result is yes, the connection between the first airflow channel and the second airflow channel and the air inlet is disconnected.

12. The refrigerator control method according to any one of claims 9 to 11, characterized in that: The following steps are also included: When the judgment results of the condition A, the condition B and the condition C are all negative, the gear position of the freezing compartment is obtained, and the second operating condition of the air duct switching component is obtained according to the gear position, and the second operating condition includes condition D and condition E. The condition D: judging whether the gear position is greater than or equal to the first gear position and less than the second gear position, and the second gear position is greater than the first gear position, When the judgment result of the condition D is yes, the refrigerator operates alternately in the first mode and the second mode, wherein the first mode is that the air duct switching element is switched to the second state, the compressor operates at a low frequency, and the fan operates at a low speed for a preset time; The second mode is to disconnect the second air flow channel from the air inlet, stop the compressor, and run the fan at a high speed for a preset time period; The condition E: judging whether the gear position is greater than or equal to the third gear position and less than the first gear position, and the third gear position is less than the first gear position, When the judgment result of the condition E is yes, the air duct switching component is switched to the first state, the compressor runs at a low frequency, and the fan runs at a low speed.

13. The refrigerator control method according to claim 12, characterized in that: After the refrigerator is operated under the condition D or the condition E, a current freezing temperature Te of the freezing compartment is obtained, and it is determined whether the current freezing temperature Te is less than or equal to a shutdown temperature of the compressor; When the judgment result is yes, the compressor is controlled to stop, the air duct switching element is switched to the third state, and the fan is operated at a high speed; Determining whether the current refrigeration temperature Tf is less than or equal to the shutdown temperature; When the judgment result is yes, the fan is controlled to stop, and the connection between the first air flow channel and the second air flow channel and the air inlet is disconnected.

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